That's right—Vanderpump Rules blonde baddie Stassi Schroeder is returning for more drama in the upcoming fourth season of the Bravo hit and it's safe to say that not all of her former co-workers are thrilled by the idea. Case in point: Ex-boyfriend Jax Taylor, who's perfectly blunt in the just-released trailer when he says, "I can't believe she's back in the picture."

But back in the picture she is, and she's already back at it with her former boss and frequent sparring partner, LisaVanderpump.

"You hate me, Lisa," Stassi tells TheReal Housewives of Beverly Hills star during what looks like a heated sit-down between the two, prompting a devastatingly delicious put-down from the restaurateur.

"You're not important enough to hate," Lisa says. "Sit down." Ouch!

Stassi's antics aren't the only insanity to look forward to in season four, however. The trailer also teases more strife between Jax and frenemy Tom Sandoval, the dissolution of Kristen Doute and James Kennedy's relationship, and what looks like a marriage proposal (finally!) for Katie Maloney from long-time boyfriend Tom Schwartz. To see it all, press play on the video above!